.page-products {
  --pp-hero-pad-top: calc(var(--sp-6) + 20px);
  --pp-hero-pad-bottom: calc(var(--sp-7) + 24px);
  --pp-cut: 44px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.8;
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  line-height: 1.22;
  letter-spacing: 0.02em;
  margin: 0;
}

.page-products p {
  margin: 0;
}

.page-products ul,
.page-products ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 首屏 ---------- */
.page-products__hero {
  position: relative;
  overflow: hidden;
  background: var(--indigo);
  color: var(--white);
  padding: var(--pp-hero-pad-top) 0 var(--pp-hero-pad-bottom);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pp-cut)), 0 100%);
}

.page-products__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 76px);
  pointer-events: none;
}

.page-products__hero::after {
  content: "";
  position: absolute;
  top: -35%;
  right: -12%;
  width: 44%;
  height: 170%;
  background: linear-gradient(180deg, rgba(212, 162, 76, 0.2), rgba(46, 139, 139, 0.08) 55%, transparent 80%);
  transform: skewX(-6deg);
  pointer-events: none;
}

.page-products__hero-inner {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumb {
  margin-bottom: var(--sp-4);
}

.page-products__eyebrow {
  margin-bottom: var(--sp-2);
  --label-tone: var(--gold);
}

.page-products__hero h1 {
  font-size: clamp(30px, 6.4vw, 56px);
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--white);
  max-width: 18em;
}

.page-products__hero-grid {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.page-products__lead {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.84);
  max-width: 34em;
}

.page-products__hero-facts {
  display: grid;
  gap: var(--sp-2);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: var(--sp-3);
}

.page-products__hero-facts li {
  border-left: 3px solid var(--cyan);
  padding-left: 14px;
  display: grid;
  gap: 2px;
}

.page-products__hero-facts li:nth-child(2) {
  border-color: var(--yellow);
}

.page-products__hero-facts li:nth-child(3) {
  border-color: var(--green);
}

.page-products__hero-facts strong {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-products__hero-facts span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.7;
}

.page-products__hero-cta {
  margin-top: var(--sp-4);
  display: inline-block;
}

/* ---------- 通用分区 ---------- */
.page-products__section {
  padding: var(--sp-6) 0;
}

.page-products__section h2 {
  font-size: clamp(24px, 4.4vw, 40px);
  font-weight: 900;
  margin-bottom: var(--sp-2);
}

.page-products__section-lead {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 40em;
  margin-bottom: var(--sp-4);
}

.page-products .section-label {
  margin-bottom: var(--sp-2);
}

.page-products__section--versions .section-label,
.page-products__section--compare .section-label {
  --label-tone: var(--cyan);
}

.page-products__section--cats .section-label {
  --label-tone: var(--green);
}

.page-products__section--tags .section-label {
  --label-tone: var(--red);
}

.page-products__section--archive .section-label {
  --label-tone: var(--yellow);
}

.page-products__section--iteration .section-label {
  --label-tone: var(--indigo);
}

/* ---------- 两栏版本 ---------- */
.page-products__versions {
  display: grid;
  gap: var(--sp-4);
}

.page-products__version {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
  background: var(--white);
  border: 1px solid var(--line);
}

.page-products__version::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--indigo);
}

.page-products__version--lite::before {
  background: var(--cyan);
}

.page-products__version-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products__version-badge {
  align-self: flex-start;
  font-size: 12px;
  letter-spacing: 0.14em;
  padding: 3px 10px;
  background: var(--yellow);
  color: var(--night);
  border: 1px solid rgba(16, 26, 46, 0.24);
}

.page-products__version h3 {
  font-size: 20px;
  font-weight: 900;
}

.page-products__shot,
.page-products__shot-wide,
.page-products__shot-band,
.page-products__shot-square {
  margin: 0;
  display: block;
  border: 1px solid var(--line);
  background: var(--sand);
}

.page-products__shot img,
.page-products__shot-wide img,
.page-products__shot-band img,
.page-products__shot-square img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__shot img {
  aspect-ratio: 3 / 2;
}

.page-products__shot-wide img {
  aspect-ratio: 2 / 1;
}

.page-products__shot-band img {
  aspect-ratio: 2 / 1;
}

.page-products__shot-square img {
  aspect-ratio: 1 / 1;
}

.page-products__version-points {
  display: grid;
  gap: 10px;
}

.page-products__version-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 10px;
}

.page-products__version-points li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products__version-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--indigo);
}

.page-products__version--lite .page-products__version-points li::before {
  background: var(--cyan);
}

.page-products__version-fit {
  margin-top: auto;
  padding: 12px 14px;
  background: var(--sand);
  font-size: 14px;
  color: var(--ink);
  border-left: 3px solid var(--gold);
}

/* ---------- 对照表 ---------- */
.page-products__table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--white);
  -webkit-overflow-scrolling: touch;
}

.page-products__compare-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}

.page-products__table-caption {
  text-align: left;
  padding: 12px 16px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-products__compare-table th,
.page-products__compare-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-products__compare-table thead th {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink);
  border-bottom: 2px solid var(--gold);
  background: var(--white);
  white-space: nowrap;
}

.page-products__compare-table tbody th {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  width: 22%;
}

.page-products__compare-table tbody tr:nth-child(even) {
  background: var(--sand);
}

.page-products__compare-table tbody td {
  color: var(--ink-soft);
}

.page-products__hint {
  margin-top: var(--sp-2);
  font-size: 14px;
  color: var(--grey);
}

/* ---------- 分栏对照 ---------- */
.page-products__split-section {
  background: var(--night);
  color: var(--white);
  padding: var(--sp-6) 0;
}

.page-products__split-section h2 {
  color: var(--white);
  font-size: clamp(22px, 4.2vw, 36px);
  margin-bottom: var(--sp-2);
}

.page-products__split-section .section-label {
  --label-tone: var(--gold);
}

.page-products__split {
  display: grid;
  gap: var(--sp-4);
}

.page-products__split-copy p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.76);
  max-width: 34em;
  margin-bottom: var(--sp-2);
}

.page-products__split-notes {
  display: grid;
  gap: 10px;
  margin-top: var(--sp-3);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: var(--sp-3);
}

.page-products__split-notes li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
}

.page-products__split-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-products__split-notes li:nth-child(2)::before {
  background: var(--yellow);
}

.page-products__split-notes li:nth-child(3)::before {
  background: var(--green);
}

.page-products__split-section .page-products__shot-wide {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
}

/* ---------- 分类手风琴 ---------- */
.page-products__cats {
  border-top: 1px solid var(--line);
}

.page-products__cat-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-display);
}

.page-products__cat-trigger .accordion-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--grey);
  flex: 0 0 auto;
}

.page-products__cat-name {
  flex: 1 1 auto;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.page-products__cat-trigger[aria-expanded="true"] .page-products__cat-name {
  color: var(--indigo);
}

.page-products__cat-trigger[aria-expanded="true"] .accordion-index {
  color: var(--gold);
}

.page-products .accordion-body {
  padding: 4px 0 18px;
  display: grid;
  gap: 10px;
}

.page-products .accordion-body p {
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 42em;
}

.page-products__cat-example {
  padding: 10px 14px;
  background: var(--sand);
  border-left: 3px solid var(--cyan);
  font-size: 14px !important;
  color: var(--ink) !important;
}

/* ---------- 五色标签 ---------- */
.page-products__shot-band {
  margin-bottom: var(--sp-4);
}

.page-products__tag-list {
  display: grid;
  gap: var(--sp-2);
}

.page-products__tag-item {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 16px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-products__tag-item .tag {
  justify-self: start;
}

.page-products__tag-white {
  background: var(--white);
  color: var(--indigo);
  border: 1px solid var(--indigo);
}

.page-products__tag-item p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ---------- 内容中心 ---------- */
.page-products__section--archive {
  background: var(--white);
}

.page-products__archive-grid {
  display: grid;
  gap: var(--sp-4);
}

.page-products__timeline {
  display: flex;
  gap: var(--sp-2);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products__tl-item {
  flex: 0 0 78%;
  scroll-snap-align: start;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 16px;
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-products__tl-month {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--indigo);
}

.page-products__tl-count {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}

.page-products__tl-item p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.page-products__archive-side {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}

.page-products__archive-notes {
  display: grid;
  gap: 12px;
}

.page-products__archive-notes h3 {
  font-size: 18px;
  font-weight: 900;
}

.page-products__archive-notes p {
  font-size: 14px;
  color: var(--ink-soft);
}

.page-products__archive-notes strong {
  color: var(--ink);
  font-family: var(--font-display);
  letter-spacing: 0.03em;
}

.page-products__archive-cta {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 迭代说明 ---------- */
.page-products__section--iteration {
  padding-bottom: var(--sp-7);
}

.page-products__iteration p {
  font-size: 16px;
  color: var(--ink-soft);
  margin-bottom: var(--sp-3);
}

.page-products__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.page-products__actions .btn {
  min-height: 44px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products__tag-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products__tl-item {
    flex: 0 0 46%;
  }
}

@media (min-width: 900px) {
  .page-products__section,
  .page-products__split-section {
    padding: var(--sp-7) 0;
  }

  .page-products__hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: var(--sp-6);
    align-items: start;
    margin-top: var(--sp-5);
  }

  .page-products__lead {
    font-size: 17px;
  }

  .page-products__hero-facts {
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
    padding-left: var(--sp-4);
  }

  .page-products__versions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-5);
  }

  .page-products__version {
    padding: var(--sp-4);
  }

  .page-products__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: var(--sp-6);
    align-items: center;
  }

  .page-products__cat-trigger {
    padding: 20px 0;
  }

  .page-products__cat-name {
    font-size: 22px;
  }

  .page-products__tag-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-3);
  }

  .page-products__archive-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: var(--sp-6);
  }

  .page-products__timeline {
    display: block;
    overflow: visible;
    padding: 0 0 0 var(--sp-4);
    border-left: 1px solid var(--line);
  }

  .page-products__tl-item {
    position: relative;
    flex: none;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    background: transparent;
    padding: 0 0 var(--sp-4) 0;
    margin-bottom: var(--sp-4);
  }

  .page-products__tl-item:last-child {
    border-bottom: 0;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .page-products__tl-item::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--sp-4) - 5px);
    top: 6px;
    width: 9px;
    height: 9px;
    background: var(--indigo);
  }

  .page-products__tl-item:first-child::before {
    background: var(--gold);
  }

  .page-products__iteration {
    padding-left: 0;
  }
}

@media (min-width: 1180px) {
  .page-products__hero-cta {
    margin-top: var(--sp-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition: none !important;
    animation: none !important;
  }
}